References
Bray, M., Brown, A., & Green, T. D. (2004).Technology and the diverse learner: A guide to classroom practice.Thousand Oaks, CA: Corwin Press.
CAST. (2012a). About UDL. Retrieved from http://www.cast.org/udl/
CAST. (2012b). Learning tools. Retrieved from http://www.cast.org/learningtools/index.html
Laureate Education, Inc. (Executive Producer). (2009a). Brain research and universal design for learning. In Reaching and engaging all learners through technology. Baltimore, MD: Rose, D.
Laureate Education, Inc. (Executive Producer). (2009b). Universal design for learning. In Reaching and engaging all learners through technology. Baltimore, MD: McLaughlin, M. & Rose, D.
Rose, D. H., & Meyer, A. (2002). Teaching every student in the digital age: Universal design for learning. Alexandria, VA: Association for Supervision and Curriculum Development. Retrieved from http://www.cast.org/teachingeverystudent/ideas/tes/

Image Sources
Post-fitted Wheelchair Ramp http://www.rampsolutions.net/
Built in Ramp http://hcdg.org/ramps.htm
House with No Stairs http://www.rollingrains.com/2012/03/universal-design-in-the-news.html
Curb Cut http://www.durhamnc.gov/departments/works/project_sw-21.cfm
Stairless Bus http://www.ap.buffalo.edu/idea/udny/section1.htm
Brain http://www.builttosell.com/blog/2011/09/06/avoiding-the-right-brain-rip-off/
Keyboard http://www.chestercreek.com/keyboards.html
Search Engines http://www.fireflimedia.com/search_engine_marketing.php
Drill and Skill http://www.turningpointtechnology.com/Software/AutismSW.asp